"What hangs at a man's thigh and wants to poke the hole that it's often poked before? A key."

Hilarious! It's funny because it's true.

Number three is an Egyptian corker:

"How do you entertain a bored pharaoh? You sail a boatload of young women dressed only in fishing nets down the Nile and urge the pharaoh to go catch a fish."

Outrageous! Oh, those silly pharohs. They love the ladies.

But the oldest recorded joke is head and shoulders above the rest. From ancient Sumeria:

"Something which has never occurred since time immemorial; a young woman did not fart in her husband's lap."

Oh, MAN. That slays me. It works on so many levels- women, laps, matrimony, flatulence...it's like they read my mind and new everything I wanted. Thank you, ancient Sumeria, for teaching us to life again. Particularly since modern-day Sumeria - aka Iraq-has a terrible sense of humor.